In Sidoarjo, Indonesia, an aquarium houses several fish

In Sidoarjo, Indonesia, an aquarium houses several fish. Two koi are the most prominent subjects. One koi, predominantly white with orange markings on its head and back, swims in the mid-ground. It has a black eye and appears to be facing left. Another koi, characterized by black and white patches and a red patch near its tail, swims to the right of the first. It is slightly blurred, suggesting movement. The aquarium's substrate consists of light-colored sand. Rocks of varying sizes and dark brown hues are scattered throughout the bottom, with some appearing mossy or textured. Bubbles rise from the bottom of the tank, indicating aeration, and are visible near the surface. The water appears clear, with a pale, muted background behind the fish.